Best JavaScript code snippet using storybook-root
index.test.ts
Source: index.test.ts
...4 describe('true', (): void => {5 test('Primitive types', (): void => {6 const deps1 = [42, true, 'foo']7 const deps2 = [42, true, 'foo']8 expect(areDepsEqual(deps1, deps2)).toBe(true)9 })10 test('Object types', (): void => {11 const arr = []12 const obj = {}13 const deps1 = [arr, obj]14 const deps2 = [arr, obj]15 expect(areDepsEqual(deps1, deps2)).toBe(true)16 })17 })18 describe('false', (): void => {19 test('Primitive types', (): void => {20 const deps1 = [42, false, 'foo']21 const deps2 = [42, true, 'bar']22 expect(areDepsEqual(deps1, deps2)).toBe(false)23 })24 test('Object types', (): void => {25 const arr = []26 const obj = {}27 const deps1 = [arr, obj]28 const deps2 = [arr, {}]29 expect(areDepsEqual(deps1, deps2)).toBe(false)30 })31 test('Different length', (): void => {32 const deps1 = [42, true, 'foo']33 const deps2 = [42, true]34 expect(areDepsEqual(deps1, deps2)).toBe(false)35 })36 })37})38test(memoize.name, (): void => {39 const add = jest.fn((num1: number, num2: number): number => num1 + num2)40 const memoizedAdd = memoize(add)41 memoizedAdd(1, 2)42 expect(add).toHaveBeenNthCalledWith(1, 1, 2)43 memoizedAdd(1, 2)44 expect(add).toHaveBeenNthCalledWith(1, 1, 2)45 memoizedAdd(3, 4)46 expect(add).toHaveBeenNthCalledWith(2, 3, 4)47 memoizedAdd(1, 2)48 expect(add).toHaveBeenNthCalledWith(3, 1, 2)...
useCache.ts
Source: useCache.ts
...12 const time = useTime("absolute");13 const prevDeps = useRef(deps);14 const prevExpires = useRef<Date | number>();15 useEffect(() => {16 const depsChanged = !areDepsEqual(prevDeps.current, deps);17 const expired = time >= expires && expires !== prevExpires.current;18 if (depsChanged || expired) {19 prevDeps.current = deps;20 prevExpires.current = expires;21 return effect();22 }23 }, [...deps, expires, time]);24}25export type RotatingCache<Item> = {26 now: Item;27 next: Item;28 rotated: number;29 deps: unknown[];30};31/**32 * It's complicated.33 * Essentially is uses a create function and a cache to return a precached object that rotates on a timeout.34 * See: Unsplash plugin35 */36export function useRotatingCache<T>(37 create: () => T | Promise<T>,38 { cache, setCache }: Cache<RotatingCache<T>>,39 timeout: number,40 deps: unknown[],41): T | undefined {42 const rotateCache = () => {43 const rotatedCache = {44 ...cache!,45 now: cache!.next,46 rotated: Date.now(),47 };48 setCache(rotatedCache);49 Promise.resolve(create()).then((next) =>50 setCache({ ...rotatedCache, next }),51 );52 };53 // Special case for changing every new tab54 useEffect(() => {55 if (cache && timeout === 0) {56 rotateCache();57 }58 }, [timeout]);59 // Rotate cache on timeout60 const time = useTime("absolute").getTime();61 useEffect(() => {62 if (cache && timeout !== 0 && time > cache.rotated + timeout) {63 rotateCache();64 }65 }, [time, timeout]);66 // On dependency change, refresh all67 useEffect(() => {68 if (!cache || !areDepsEqual(deps, cache.deps)) {69 Promise.all([create(), create()]).then(([now, next]) =>70 setCache({ now, next, rotated: Date.now(), deps }),71 );72 }73 }, [...deps, cache]);74 return cache ? cache.now : undefined;75}76/**77 * Implementation adapted from react's hook source.78 * Too bad they do not export it.79 */80function areDepsEqual(prevDeps: unknown[], nextDeps: unknown[]) {81 for (let i = 0; i < prevDeps.length && i < nextDeps.length; i++) {82 if (Object.is(nextDeps[i], prevDeps[i])) {83 continue;84 }85 return false;86 }87 return true;...
deps.test.ts
Source: deps.test.ts
1import { areDepsEqual, depsRequireUpdate } from '../../src/core/areDepsEqual'2describe('dependecy array', () => {3 test('array identity can be different (empty)', () => {4 expect(areDepsEqual([], [])).toBeTruthy()5 })6 test('array identity can be different (with value)', () => {7 const someObj = { a: '1' }8 expect(areDepsEqual(['a'], ['a'])).toBeTruthy()9 expect(areDepsEqual([1], [1])).toBeTruthy()10 expect(areDepsEqual([someObj], [someObj])).toBeTruthy()11 })12 test('deps of different length', () => {13 expect(areDepsEqual(['a'], ['a', 'b'])).toBeFalsy()14 expect(areDepsEqual(['a', 'b'], ['a'])).toBeFalsy()15 })16 test('missing deps array (always consider as different)', () => {17 // @ts-expect-error18 expect(areDepsEqual(undefined, [])).toBeFalsy()19 // @ts-expect-error20 expect(areDepsEqual(undefined, undefined)).toBeFalsy()21 // @ts-expect-error22 expect(areDepsEqual(false, false)).toBeFalsy()23 })24 test('value types', () => {25 expect(areDepsEqual([NaN], [NaN])).toBeTruthy()26 })27})28describe('depsRequireUpdate', () => {29 test('array identity can be different (with value)', () => {30 const someObj = { a: '1' }31 expect(depsRequireUpdate(['a'], ['a'])).toBeFalsy()32 expect(depsRequireUpdate([1], [1])).toBeFalsy()33 expect(depsRequireUpdate([someObj], [someObj])).toBeFalsy()34 })35 test('missing deps array (always consider as different)', () => {36 expect(depsRequireUpdate(undefined, [])).toBeTruthy()37 expect(depsRequireUpdate(undefined, undefined)).toBeTruthy()38 })39})
Using AI Code Generation
1import {areDepsEqual} from 'storybook-root';2import {areDepsEqual} from 'storybook-root';3import {areDepsEqual} from 'storybook-root';4import {areDepsEqual} from 'storybook-root';5import {areDepsEqual} from 'storybook-root';6import {areDepsEqual} from 'storybook-root';7import {areDepsEqual} from 'storybook-root';8import {areDepsEqual} from 'storybook-root';9import {areDepsEqual} from 'storybook-root';10import {areDepsEqual} from 'storybook-root';11import {areDepsEqual} from 'storybook-root';12import {areDepsEqual} from 'storybook-root';13import {areDepsEqual} from 'storybook-root';14import {areDepsEqual} from 'storybook-root';15import {areDepsEqual} from 'storybook-root';16import {areDepsEqual} from 'storybook-root';17import {areDepsEqual} from 'storybook-root';18import {areDepsEqual} from '
Using AI Code Generation
1const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');2const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');3const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');4const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');5const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');6const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');7const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');8const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');9const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');10const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');11const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');12const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');13const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');
Using AI Code Generation
1export { areDepsEqual } from 'storybook-root';2import { areDepsEqual } from './test';3describe('test', () => {4 it('should run', () => {5 expect(areDepsEqual).to.be.a('function');6 });7});8export { areDepsEqual } from 'storybook-root/areDepsEqual';9export { areDepsEqual } from 'storybook-root/lib/areDepsEqual';10export { areDepsEqual } from 'storybook-root/lib/areDepsEqual';11import { areDepsEqual } from './test';12describe('test', () => {13 it('should run', () => {14 expect(areDepsEqual).to.be.a('function');15 });16});17export { areDepsEqual } from 'storybook-root/areDepsEqual';18import { areDepsEqual } from './test';19describe('test', () => {20 it('should run', () => {21 expect(areDepsEqual).to.be.a('function');22 });23});24export { areDepsEqual } from 'storybook-root/lib/areDepsEqual';25import { areDepsEqual } from './test';
Using AI Code Generation
1import { areDepsEqual } from 'storybook-root/dist/esm/client/preview/deps';2it('should not rerender', () => {3 const deps = { a: 1, b: 2 };4 const deps2 = { a: 1, b: 2 };5 expect(areDepsEqual(deps, deps2)).toBeTruthy();6});7import { areDepsEqual } from 'storybook-root/dist/esm/client/preview/deps';8it('should rerender', () => {9 const deps = { a: 1, b: 2 };10 const deps2 = { a: 1, b: 3 };11 expect(areDepsEqual(deps, deps2)).toBeFalsy();12});13The problem is that I have to import the method from the dist folder. Is there a way to import it from the root folder?14"dependencies": {15 }
Using AI Code Generation
1import { areDepsEqual } from 'storybook-root';2import { getDependencies } from 'storybook-root';3jest.mock('storybook-root', () => ({4 ...jest.requireActual('storybook-root'),5 getDependencies: jest.fn(),6}));7jest.mock('storybook-root', () => ({8 ...jest.requireActual('storybook-root'),9 getDependencies: jest.fn(),10}));11describe('areDepsEqual', () => {12 it('should return true if dependencies are equal', () => {13 const dependencies = {14 };15 getDependencies.mockReturnValue(dependencies);16 expect(areDepsEqual(dependencies)).toBeTruthy();17 });18 it('should return false if dependencies are not equal', () => {19 const dependencies = {20 };21 const dependencies1 = {22 };23 getDependencies.mockReturnValue(dependencies);24 expect(areDepsEqual(dependencies1)).toBeFalsy();25 });26});27export const getDependencies = () => {28 try {29 return JSON.parse(fs.readFileSync('package.json')).dependencies;30 } catch (e) {31 throw new Error(`Error while reading package.json file: ${e.message}`);32 }33};34export const areDepsEqual = (dependencies) => {35 const pkgJsonDependencies = getDependencies();36 return _.isEqual(pkgJsonDependencies, dependencies);37};38{39 "dependencies": {40 }41}42{43 {44 }45}46{
Using AI Code Generation
1import { areDepsEqual } from 'storybook-root';2const Component = ({ prop1, prop2 }) => {3};4const areDepsEqual = (prevProps, nextProps) => {5};6export default Component;7import { storiesOf } from '@storybook/react';8import { withInfo } from '@storybook/addon-info';9import Component from './test';10storiesOf('Component', module)11 .addDecorator(withInfo)12 .add('Component', () => <Component prop1={1} prop2={2} />);
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